Car truck



Sept. 29, 1931. K, M. HAM|| T0N 1,825,451

\ CAR TRUCK Filed July 18, 1927 .2 sheets-sheet 1 r Il mv e MH. In @y ,wo d Q M@ II; flllll y l z 1l n E n Tllll. im 1 l f v wwf O O H l LII Il n f 1 .y ,K n O ia w f 1L I l ...ululuwu I wlumnl nwwwwwwmwmwmmlwwwmmwmw l 7 i, 1 H|||H|||+|||| Hl.. muuu* lulllhhmmwnh In, www il I ---l l :w.. w------./.1. r 1a f a M l Sept. 2.9, 1931. k. M. HAMILTON CAR TRUCK Filed July 1s, 1927 42 Sheets-Sheet 2 capacity connection between type wherein connection frames and the transom is effected by integral formations of the side frames and tranby telescoping the ends of the transom overthe side frames.

Other objects of my invention are to prothe swing a truck having an equal be readily assembled place without special tools. f

Other objects will more clearly appear from the description and claims hereinatterI following.

in this figure ure 3 is an en proved truck having corporated therein.

tail vertical substantially to the the side frames; the bolster; D the spring p have chosen to illustra the side frames formed journal Patented Sept. p29, 1931 UNITED STATE KARL M. HAMILTON, OF CHICAGO, ILLIN OF BETTENDORF, IOWA, A CORPORATION 0F IOWA OIS, ASSIGNOR T0 THE BETTENDORF COMPANY,

' CAB TRUCK Application tiled July My invention relates to railway trucks motion ty-pe and especially although the use is not limited thereto.

One object of my and transom.

AA further object 'of my invention is provide a truck of the swing or lateral motion between the side som and more specifically vide a truck wherein all the parts may assembled and maintained in assembled condition without theuse of bolts, rivets or like fastening devices and wherein the truck may or disassembled at any In the also OI the Same IeaSOIl.

In said drawings,

ster supporting springs; and F the transom supporting springs.

invention is to provide ized, high spring the side frames drawing forming a part of this specification, Figure 1 is a top plan view a portion of a truck showing my improvements in connection therewith, parts being broken away to prevent crowding on the sheet. Figure 2 is a vertical, sectional vvi Figd elevational view of the iinmy improvements in- And Figure 4 isia desectional view corresponding line 4-.4 of Figure 3.

A designates, broadly, B the transom casting; C

lank; E the bolis, 1927. seriai No. 206,570.

of to tegral journal box 12; and vertical columns 13-13, the latter being spaced so as to leave a central opening 14 for the purpose hereinafter described. The arch bars and the columns are preferably each of U-cross section in order to provide great strength although, as will be understood,

arts may be varied. The side frames also ydiffer from the usual side trame in that the lower arch bar 11 is provided with spring seats 15--15 at widely separated points, said spring seats being, in fact, relatively closely adjacent the journal obtain a maximum spread or distance between the transom supporting springs F-F which are seated on said spring sea 15.

The transom casting B, as shown, ably comprises two horizontally disposed, elongated main arms 16-16 which are parallel at their outer ends for a short distance as indicated at 16-a andthen diverge until the center vline is reached as indicated at 16-b and thence converge and are parallel at the opposite ends as will be evident from an inspection of Figure 1. The arms 16 are integrally connected at their respective ends by what may be termed an end sectionG of the transom. Each end section G is of inforwardly and rearwardew ly extended arms 18-18, the top corresponding approximately to the line latter being inclined downwar ly from the 2-2 of Figure 1, parts being broken away central horizontal portion 19 of the end secscoped engagement of the end sections G of In the particular embodiment which I the transom casting with the side frames.

an upp Each arm 18 of the transom, at its end, is provided with semi-bearings-lS-a cooperable with a spring cap 20 seated on the top of the corresponding spring F so that the arms 18 of` the 4transom casting are supported boxes so as to thereby prefer- V verted VU cross section as indicated at 17 best the sections ofthese v by the springs F and at the same time a slight rocking or tilting movement between the saine and the spring caps is permitted. The parte will be so designed that the upper web portion of the end sections G of the transom casting Awill be normally rspaced from the upper surface of the upper arch bar about two inches, thus allowing for up and down movement of the transom relative to the side frames.

At the center, each end section G of the transom casting is provided with two depending arms 21-21, the latter having vertical guiding faces 22-22 which are adapted to cooperate with corresponding guide fianges 23-23 provided on the columns 13 so as to 'thereby restrain the transom casting to vertical movements relative to the side frames. vThe end section G may be reinforced around the opening defined by said depending side arms by suitable flange sections as indicated at 22a best in Figure 2. The depending arms 21 may further be braced with respect to the remainder of the castings by webs 24.

The transversely extending main arms 16 of the transom casting are preferably of hollow box-like cross-section as indicated at 16-0 in Figure 3.

At their ends, the arms 16 of the transom' casting are slotted as indicated at 26 andv provided with semi-bearings to accommodate the spring plank hangers 27 with their supporting pins 28. The lower ends of the hanger links 27 are connected by a cross link 29, the latter supporting a spring plank bearing plate 30 on which the spring plank D is mounted, the connection between the same being detachable by means of lugs 31 formed integrally with the plate 30 and extending through suitable perforations in the spring plank D. At each end of the spring plank the spring seats 32 are provided on which are `seatedthe elliptic plate springs E, the latter in turn supporting the ends ofthe bolster C, thus providing for a swing motion type of truck as will be obvious to those skilled in the art. The details of the bolster C may be varied and I do not deem it necessar to enter into a detailed description thereo in this ap lication.

ith my improved arrangement, it is evithat all of the parts may be assembled maintained in assembled condition Withdent and .out the aid of bolts, rivets or like fastening devices, The transomvcasting is assembled with the side frame by simply telescoping the endl sections G over the side framesas will be obvious. By 'providing forwardly and rearwardly extending arms on the end sections of the transom casting and supporting them by the springs F as shown, the side frames are enabled to carry a muchheavier load per given weight, the transom is supported in an equalized manner and an easier bolster, yieldingly supported from the transom affords an exceptionally easy riding truck, making the same particularly adapted for Caboose cars. It Will be noted also that the elliptic springs E are extended in part through the openings 14 Vof the side frames, thus allowing of the use of large sized elliptic sprin s and a spring plank of proper length. nother advantage of my improvements, as will be apparent from an inspection ofFigure 3, resides in the fact that, upon failure or undue set of either spring F, the displacement or tilt ofthe transom casting will be comparatively small since the corresponding arm 18 of the transom casting will drop down to engagementwith the corresponding adjacent section of the upper arch bar and there would still remaln a cushioned support between the transom and the side frame.

I have herein shown and described what I now consider the preferred manner of carrying out' my invention, but the same is merely illustrative and I contemplate all changes and modifications that come within the scope of the claims appended hereto.

I claim:

l. In a truck, the combination with side frames having tension and compression members and guide columns extending therebetween and defining a window opening; of a transom, said transom having end portions telescoping over the upper portions of said compression members of the side frames and being cut out to leave said Window openings substantially unobstructed.

` 2. In a truck, the combination with side frames having tension and compression members and guide columns extending therebetween 'and providing Window openlngs; of a one piece cast transom, the latter havlng end sections shaped so as to telescopically fit compression bars ofthe side 'frames and to bc disposed substantially out of line with -said window openings.

3. In a' truck, the combination'with side frames having tension and compression members and guide columns extendingv therebetween; of a transom having the ends thereof telescoped over said side frames. and having a cut-out portion; a sprin plank supported from said transom; a bo ster; and springs interposed between said plank and bolster and extending into the cut out portions 0f said transom.

4. In a car truck, the combination with side frames having tension and compression members and guide columns extending therebetween; of a -transom having arms extending longitudinally over the top of and yield# ingly supported by said side frames at points distant from the center of the latter on springs carried by said tension members; a

spring plank supported from the transom; adapted to be telescoped over truck side a bolster, elliptical springs between said bolframes'. ster and said spring plank and extending lon- 11. In a car truck, the combination with gitudinall of the bolster and projecting cast side frames provided with centrally disthrough t e side frames between the guide. posed openings; of a transom having the columns. ends thereof telescoped over said side frames; 7 5. In a car truck, the combination with relatively widely separated springs interside frames each having tension and com posed between each side frame yand correpression members, guide columns extending sponding adjacent end of the transom; a 10 therebetween and spaced spring bearing seats spring: plank sus ended from said transom; on' said tension member; a transom having, a bolster; and liptic plate springs interat each end, inte ra'llyv formed, oppositely posed between the bolster and spring plank.,V extending arms o channel shape disposed portions of said plate springs belng extended lengthwise of and telescoped with said comoutwardly through the central openings 0f pression members; and spring means intersaidframes.

osed between each said seat and correspond- 12. In a car truck, the combination with ing transom arm. A i cast side frames having 'compression and ten- 6. In a truck, the combination with side sion members and columns provided with frames; of a cast member com rising spaced vertical guides thereon; of a cast transom beams extending between sai side frames, having hollow end sections, the latter telesaid beams connected at their ends by end -scopingover said side frames," each of said sections open on the bottom and said sections end sections having vertically disposed guidtelescoping over said. side frames. l ing flanges cooperable with those of the side 7. In a truck, the combination with side frames. n A frames having tension and compression mem- .13. In a car truck, the combination with o bers and guide columns extending therebeside frames, each includinga tension m'emtween; of a cast memberextending between ber and a compression member and guide said side frames, said member having end columns; of a transom having s a`ced beams sections open on the bottom and said sections and integral connecting sections having arms 3 telesco ing over the compressionmembers of projecting longitudinally of said side frame said si eframes,said members and side frames and of channel-shape to it over the compreshaving cooperable vetrically extending guidsion members; spring means interposed being means; and springs interposed between tween the end portions of said arms andthe said side frames and member. tension members of said side. frames; a

. 8. In a cartruck, the combination with spring plank swingingly suspended below 'cast side frames having compression and tensaid transom; a bolster disposed between the sion members, guide columns extendin s aced beams of said transom' and additherebetween'- and integral journal boxes; o tional spring means interposed between the a transom telescoped over said side frames, `end portions of said spring plank and the said: transom having forwardly and rearcorres nding ortions of saidy bolster. 105 wardly extended arms; springs on said ten- 14. n a truc the-combination with the sion members of said side frames and cooperside frames thereof each comprising a comble With the end pOItOIlS 0f Said transom pression and tension member spaced apart arms; and a bolster su rted for lateral adjacent their central ortions and convergmovement relative to saldptransom. ing adjacent their en s, and guide columns no 9. As an article of manufacture, a transom disposed between said tension and comprescastin I for trucks comprising: two horizonsion members in s aced relation adjacent the tally isposed, spaced arms and integral C011- central portions t ereof; a transom extendnecting sections at their ends, said connecting ing between said side frames and having `and rearwardly of said horizontally disposed guiding the transom armsat the ends of said arms, said sections being open on the bottom transom extending lengthwise of said side and beingcut out centrally to provide clearframes yleldable means Intel' Sed betwen ance space ,when used with a truck the ends. of said arms and t e vrelated side 10. As an article of manufacture, a frame; l bolster; a' pnng Plank swntg' B0 transom casting for trucks comprising: two ably supporfl from Said transom' 9nd emp horizontally disposed arms arranged to extll sRlmgs .mterfoselg bween sd bolster an sai spring p an a jacent t e res ecv izisrsrsaf :s t: f Sme, Se 11i-m1 Jugs nga to and @am .f a. ma Pfggggng swr the ggdgggdmff the v res ve si e rames an ween eporzassrarsrirsa @ssamm Wam Said thereof, each end' section being of approxi- `15. In a tru'cltz the combination with side 65 mately lnverted U cross-section and thereby frames each havlng a tension'member, com- 13o sections having arms projecting forwardly means cooperating with said columns for l 15 l pression member and guide columns, integrally formed; a transom; means for guiding said transom with reference to each of said'side frames; yieldable means interposed between the respective ends of the transom andy the adjacent side frame; av spring plank swingably supported from said transom; and elliptical springs interposed between the opposite ends of said spring plank and bolster, said springs extending outwardly between said guiding means and the guide columns of each frame.

16. In a truck, the combination with side frames each having a compression and tension member converging adjacent their ends, and spaced centrally disposed guide columns extending between said compression and tension members; a transom cosoperating with said side frames and being provided with spaced extensions defining an opening registering wth the opening between said guidev columns; means for yieldablyE supporting said transom upon said guide frames; a bolster; means swingably supported from said transom; and elliptical springs interposed between said swingable means and said bolster and rejecting through the registering openings etween the extensions on said t-ransom and said guide columns.

17. In a truck, the combination lwith side frames, each comprising compression and tension members converging adjacent their ends andbeing separated by centrally arranged spaced guide columns; a transom having its o posite ends projecting across the plane de ned by said compression and tension members and having cut-out portions in said ends affording clearance in line with the space between the guide columns of said frames; means carried by said side frames for yieldably supporting said transom; a spring plank; spring plank hanger links swingably supporting said plank from saidtransom; a bolster; and yieldable means interposed bespring lank and said bolster for supporting said bo ster, said last named resilient means comprising elliptic springs, said springs extending between said guide members and guides.

19. In a truck, the combination of side frames having journal boxes, spaced guide members on said side frames spaced from said journal boxes, a transom having members cooperating with said guide members and deing an opening, means disposed between said transom and said side frames for supporting saidI transom, a bolster, a spring plank, means for movably supporting said spring plank from said transom, and means interposed between said spring plank and bolster and extending between said guide members and second named members for resiliently supporting said bolster.

\ 20. In a transom, the combination of a member, yokes lprovided at the ends thereof,

said yokes being provided with side portions adapted to cooperate with a side frame member and central connecting portion, said yokes and member having vertical guides thereon, side portions vhaving spring-positioning means on the bases thereof.

21. In a truck, the combination of side frames having upper and lower chords, spaced column guides between said chords, transom, transom yokes having columns slidably engaging said guides, resllient members supported on the 'frame lower chord and supporting said yokes, a bolster, a spring plank, and supporting members between said bolster and spring plank and disposed to partially project beyond said frames between the transom columns.

In witness that I claim the foregoing I have hereunto subscribed my name this 13th day of July 1927. i

KARL M. HAMILTQN.

tween said bolster and said spring plank, said the'guide columns and through the space afforded for clearance of said transom. j 18. In a truck, the combination of side frames rovided with journal boxes, each of said si e frames having guide `members thereon spaced from said journal boxes, atransom disposed between said side frames and having guides cooperating with said guide members to restrict the transom to vertical movement relatively to `said frames, arms laterally extending said transom in opposite directions adjacent the side frames, resilient supporting means disposed between the ends of said arms and said frames, a bolster, a spring plank swingably mounted on said transom, and resilient supporting means disposed between said by the cut-out portions in the form of elliptical from the ends of 

